Improvement in shutter-fasteners



E. F. BALDWIN Shutter-Fasteners. v No. 156,010, I Patented Oct. 20,1874,

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UNITED STATES PATENT OEEIcE.

EDSON F. BALDWIN, OF THETFORD, VERMONT, ASSIGNOR TO CHARLES T. FISH ANDC. K. WOOD, OF ASHBURNHAM, MASS.

IMPROVEMENT IN SHUTTER-FASTENERS.

Specification forming part of Letters Patent No. 156,010, dated October20, 1874; application filed August 27, 1874.

To all whom it may concern:

Be it known that I, EDSON F. BALDWIN, of Thetford, in the county ofOrange, State of Vermont, have invented a certain new and usefulImprovement in Window-Blind Fasteners, of Which the following is adescription sufficiently full, clear, and exact to enable any personskilled in the art or science to which my invention appertains to makeand use the same, reference being had to the accompanying drawing,forming a part of this specification, in Which- Figure l is aperspective view of my im proved fastener with the blind opened, andFig. 2 an under view of the same.

Like letters of reference indicate corresponding parts in the differentfigures of the drawing.

My invention relates to that class of blindfasteners which are operatedby a lever near the hinge-rail of the blind; and consists in a novelconstruction and arrangement of the parts, as hereinafter more fully setforth and claimed, by which a simpler, cheaper, and more effectivedevice of this character is produced than is now in common use.

In the drawing, A is the blind; B, the wall of the building; I, thewindow-sill; G, the body of the fastener; and E H, the catches. The partG consists of a single rod or wire, bent to form a double crank, F, andthe lever O, and is secured to the blind by the hangers a a, the end 0being kept in posit-ion by the staple a. A coiled spring, D, is disposedaround the body of the fastener, one end of the spring resting againstthe under side of the blind, the other being attached to the fastener,the spring acting to force the part F into the catches E and H when theblind is fully open or closed. The body of the fastener is nearly aslong as the blind is wide, which, it will be seen, brings the lever 0near the hinge rail (1, rendering it very convenient to open and closethe blind from the inside. The notch w in the catch H is made V- shaped,to prevent the blind from rattling the spring D, pressing the part Finto the V, and holding it firmly, in a manner which will be readilyobvious.

